CN-224228641-U - Leakage-blocking combined wax pill for efficiently blocking leakage of drilled holes

CN224228641UCN 224228641 UCN224228641 UCN 224228641UCN-224228641-U

Abstract

The utility model discloses a plugging combination wax pellet for efficiently plugging a drilling leak, which comprises an expansion-preventing environment-friendly plugging combination wax pellet body, wherein the expansion-preventing environment-friendly plugging combination wax pellet body comprises an expansion plugging member, an inner shell, a bridge plug framework plugging and bonding member, an outer shell and an outer shell, wherein the inner shell is wrapped outside the expansion plugging member and is used for sealing the expansion plugging member inside the inner shell to achieve a sealing and water-proof effect, the bridge plug framework plugging and bonding member is wrapped outside the inner shell, and the outer shell is wrapped outside the bridge plug framework plugging and bonding member to achieve the sealing and water-proof protection plugging material. By adopting a proper and efficient waterproof protection method, various inert plugging materials can achieve better hydration and expansion protection before delivering the expansion-proof environment-friendly plugging combination wax pellet body to the position of the leakage in the hole, so that the high-water-absorption resin expanding agent and the inert plugging materials are prevented from being hydrated and expanded in advance to prevent the plugging effect from being achieved, and the leakage of drilling flushing fluid is quickly plugged.

Inventors

Yi Qiangzhong
REN YANG
ZHANG LUNYONG
Wang Ronghuai
WU YONGPENG
ZHANG YANHUA
CHAI JIANHUA
Zhao Shisuo
YAO RONGHUA
LIU ZHEN
LI XIAOLONG
GUO JUNBO

Assignees

云南地质工程第二勘察院有限公司
云南地矿工程勘察集团有限公司

Dates

Publication Date: 20260512
Application Date: 20250625

Claims (8)

1. The utility model provides a combined lost circulation wax pill for high-efficient shutoff drilling loss, includes that combined lost circulation pill body (1) of expansion-proof environmental protection, its characterized in that, combined lost circulation pill body (1) of expansion-proof environmental protection includes: an inflatable blocking member (1 a); The inner shell (1 b), the inner shell (1 b) wraps the outer part of the expansion plugging member (1 a) and is used for sealing the expansion plugging member (1 a) in the inner shell (1 b) so as to achieve the sealing and water-proof effects; The bridge plug framework seals the bonding part (1 c), which wraps the outer part of the inner shell (1 b); The outer shell (1 d), the outer shell (1 d) wraps the bridge plug framework to seal the outside of the bonding member (1 c), so as to achieve the effects of sealing, water isolation, protection and plugging materials.
2. The plugging combination wax pellet for efficiently plugging the drilling loss according to claim 1, wherein the whole of the expansion-preventing and environment-friendly plugging combination wax pellet body (1) is in a solid sphere shape, and the outer surface of the solid sphere-shaped expansion-preventing and environment-friendly plugging combination wax pellet body (1) is marked with product names and specification marks, so that the wax pellets with corresponding model sizes can be quickly selected according to actual construction needs in construction.
3. The plugging combination wax pellet for efficiently plugging the leakage of the drill hole according to claim 1, wherein the expansion plugging member (1 a) is made of a super absorbent resin expansion plugging material, wherein the expansion plugging member (1 a) is composed of polymer particles with the diameter of 0.05-5.0 mm and uneven size, and the expansion plugging member (1 a) only swells and does not dissolve after absorbing water.
4. The plugging combination wax pellet for efficiently plugging the leakage of the drilled hole according to claim 1, wherein the inner shell (1 b) is an inner hollow round shell structure prepared by beeswax and is used for having a sealing and waterproof effect.
5. The plugging combination wax pellet for efficiently plugging the leakage of the drilled hole according to claim 1, wherein the outer shell (1 d) is an inner hollow round shell structure made of beeswax and is used for having a sealing and waterproof effect.
6. The lost circulation combined wax pellet for the efficient plugging of lost circulation in a borehole of claim 5, wherein the inner diameter of the outer housing (1 d) is larger than the outer diameter of the inner housing (1 b).
7. The plugging combination wax pellet for efficiently plugging the leakage of the drill hole according to claim 1, wherein the expansion plugging member (1 a), the inner shell (1 b), the bridge plug framework plugging bonding member (1 c) and the outer shell (1 d) are sequentially arranged from inside to outside to form the expansion-preventing environment-friendly plugging combination wax pellet body (1).
8. The plugging combination wax pellet for efficiently plugging the leakage of the drill hole according to claim 7, wherein an alarm layer is coated on the outer surface of the anti-expansion environment-friendly plugging combination wax pellet body (1), and the alarm layer is a colored paint.

Description

Leakage-blocking combined wax pill for efficiently blocking leakage of drilled holes Technical Field The utility model relates to a plugging combination wax pellet for efficiently plugging drilling loss, which is mainly used for effectively plugging when flushing fluid is leaked in the process of breaking, cracking and hole stratum drilling, solves the problem of flushing fluid loss in the current drilling construction process in the drilling field with low cost, broad spectrum and high efficiency and green environment protection, and belongs to the technical field of drilling engineering construction. Background In general, in the process of drilling engineering, flushing fluid leakage often occurs when the drilling is carried out on broken, fractured or perforated stratum. The lost flushing fluid can greatly increase the cost of drilling construction materials, can seriously influence the normal drilling and construction progress of the drilling, seriously and even cause the scrapping of the drilling, and causes great economic loss in drilling construction. In recent years, students and engineering technicians develop a great deal of research and practice work on the plugging materials, technologies and equipment of large-scale leakage, malignant leakage and other complex stratum, and the development and innovation of plugging tools, the optimization of plugging technology and the preparation of the plugging materials are continuous, but each plugging technology and material have certain limitations, such as how to accurately and quickly deliver the plugging materials to the leakage positions in holes. The plugging material and the super absorbent resin expansion plugging novel material are hydrated and expanded in advance if water absorption occurs before being conveyed to a leakage channel, and the plugging material cannot effectively enter the leakage crack channel after expansion, so that the plugging effect of the expansion bridge plug is lost, so that how to prevent the hydration and expansion of the plugging material and the super absorbent resin expansion plugging novel material before being conveyed to the leakage channel is the key point of the innovation of the utility model. At present, the drilling leakage is a common problem frequently encountered in hydrologic, oil gas and geological core drilling construction, for the geological drilling construction leakage stopping work, the permeability backflow leakage can be well solved, for the serious leakage problems of large crack type and hole (solution) cavity type leakage stopping performance, the polymer thick paste leakage stopping technology, the inert framework material bridge plug leakage stopping technology, the urea resin slurry solidification leakage stopping technology, the cement consolidation leakage stopping technology and the like are mainly adopted at present, the newly developed dual-coating mud ball delivery method of the water-absorbent resin expansion agent and the inert leakage stopping material is adopted in units for a plurality of years, the larger function is exerted in the drilling bridge plug leakage stopping work, but when the water-absorbent resin expansion agent enters a leakage gap to perform bridge plug leakage stopping work, the water-absorbent resin expansion agent has the advantages of short expansion time, difficult control, irregular particle specifications and leakage cracks, unreasonable carrier and the like, the water-absorbent resin expansion agent and the inert leakage stopping material are soaked in advance before being delivered to the leakage stopping position, so that the bridge plug is often not ideal in the leakage stopping work, and in the unit, the unit adopts the' dual-coating method of the mud ball delivery material to obtain the better leakage stopping effect of 100% in the 2014 years, and the cost is lower than 100%. However, the method takes more time to manufacture the double film coated mud ball on site, the plastic film cannot be degraded, the environmental protection requirement cannot be met, and the method is limited by the condition that the operation of on-site operators is not unified and various conditions are obtained, so that the leaking stoppage effect can be influenced to different degrees. Therefore, the environmental protection of the plugging material needs to be further developed and solved in the process of optimizing the plugging operation. Therefore, developing an anti-expansion environment-friendly plugging composite wax pellet with strong practicability and high working reliability for efficiently plugging a drilled hole and plugging the drilled hole leakage is a key point for solving the technical problems. Disclosure of utility model Aiming at the defects and shortcomings existing in the background technology, the utility model improves and innovates the defects, and aims to provide the expansion-preventing environment-friendly plugging combined wax pellets which have