CN110778293A - Multifunctional combined hole digger - Google Patents
Multifunctional combined hole digger Download PDFInfo
- Publication number
- CN110778293A CN110778293A CN201810757991.6A CN201810757991A CN110778293A CN 110778293 A CN110778293 A CN 110778293A CN 201810757991 A CN201810757991 A CN 201810757991A CN 110778293 A CN110778293 A CN 110778293A
- Authority
- CN
- China
- Prior art keywords
- joint
- hole
- body structure
- pressure
- hole digger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 5
- 238000004080 punching Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention belongs to the technical field of dynamic negative pressure perforation operation of oil and gas wells, and particularly relates to a multifunctional combined hole digger. The multifunctional combined hole digger has the characteristics of convenient and fast communication, complete functions, compact and reliable structure and the like. A multi-functional combination hole digger comprising: the tapper main body structure is formed by fixedly connecting an upper joint and a lower joint in series; the sliding cylinder is arranged in a cavity inside the main body structure of the hole digger in a sliding mode, and an annular pressurizing cavity is arranged between the sliding cylinder and the lower connector; the hole digger main body structure is also provided with a prefabricated pressure relief hole and a positioning ring, and a cutting pin is arranged in the positioning ring; and a pressure measuring joint which is fixedly arranged on the periphery of the lower joint in a threaded manner, wherein a pressure gauge is arranged on the pressure measuring joint.
Description
Technical Field
The invention belongs to the technical field of dynamic negative pressure perforation operation of oil and gas wells, and particularly relates to a multifunctional combined hole digger.
Background
The perforator is used as an important device in dynamic negative pressure perforation test joint work, and can realize the communication between the inside of an oil pipe and the annulus through throwing rod impact, ensure the smooth pulling of the oil pipe, prevent the phenomenon of 'top-blowing and lifting', and prevent the occurrence of blowout phenomenon. However, the inventor found that the existing hole digger generally only allows one hole punching mode (either impact punching or pressure punching) to be used at the same time, and the on-line pressure measurement work cannot be completed. If two kinds of hole openers are arranged and the pressure measuring joint is added at the same time, a plurality of conversion joints are required to be additionally arranged, the length of a tool string can be increased, the strength of combined operation can be increased, and the work efficiency of negative pressure perforation test combined operation is not improved.
Disclosure of Invention
The invention provides a multifunctional combined hole digger which has the characteristics of convenient and fast communication, complete functions, compact and reliable structure and the like.
In order to solve the technical problems, the invention adopts the following technical scheme:
a multi-functional combination hole digger comprising:
the tapper main body structure is formed by fixedly connecting an upper joint and a lower joint in series;
the sliding cylinder is arranged in a cavity inside the main body structure of the hole digger in a sliding mode, and an annular pressurizing cavity is arranged between the sliding cylinder and the lower connector;
the hole digger main body structure is also provided with a prefabricated pressure relief hole and a positioning ring, and a cutting pin is arranged in the positioning ring;
and a pressure measuring joint which is fixedly arranged on the periphery of the lower joint in a threaded manner, wherein a pressure gauge is arranged on the pressure measuring joint.
Preferably, the periphery of the pressure gauge is also provided with a protective sleeve for protection.
Optionally, the upper joint and the lower joint are fixedly connected in series by a set screw.
Preferably, a sealing ring is further arranged between the sliding cylinder and the inner cavity of the main body structure of the hole cutter.
Alternatively, the number of the cut pins installed in the positioning ring is not less than 2.
The invention provides a multifunctional combined hole digger which is provided with a hole digger main body structure formed by fixedly connecting an upper joint and a lower joint in series, a sliding cylinder, an annular pressurizing cavity, a prefabricated pressure relief hole, a positioning ring, a cutting pin, a pressure measuring joint, a protective cylinder, a pressure gauge and other structural units. The multifunctional combined hole digger with the structural characteristics has two hole forming modes of impact hole forming and pressurization hole forming, is high in hole forming efficiency and strong in reliability, can complete online pressure measuring operation, and is simple to use and convenient to connect in series.
Drawings
FIG. 1 is a schematic structural view of a multi-functional combined hole opener according to the present invention;
reference numerals: 1. a positioning ring; 2. an upper joint; 3. a sliding cylinder; 4. a lower joint; 5. a pressure measuring joint; 6. protecting the cylinder; 7. a pressure gauge; 8. cutting off the pin; 9. prefabricating a pressure relief hole; 10. an annular pressurized cavity.
Detailed Description
The invention provides a multifunctional combined hole digger which has the characteristics of convenient and fast communication, complete functions, compact and reliable structure and the like.
As shown in fig. 1, the multifunctional combined hole digger comprises a hole digger main body structure, wherein the hole digger main body structure is formed by fixedly connecting an upper joint and a lower joint in series. Preferably, the upper joint and the lower joint are further fixed in series connection through a set screw. A sliding cylinder capable of sliding up and down is arranged in a cavity inside the main body structure of the hole digger, and an annular pressurizing cavity is arranged in a space between the sliding cylinder and the lower joint. In a preferred embodiment of the present invention, a seal ring is further provided between the slide cylinder and the inner cavity of the main body structure of the hole cutter in order to further improve the sealing effect of the inner cavity of the main body structure of the hole cutter.
In addition, as shown in fig. 1, the main structure of the hole digger is further provided with a prefabricated pressure relief hole and a positioning ring; wherein, the positioning ring is internally provided with cutting pins (at least 2 cutting pins are preferably designed). The periphery of the lower joint is fixedly provided with a pressure measuring joint in a threaded manner, and the pressure measuring joint is provided with a pressure gauge which is used for measuring pressure; preferably, the periphery of the pressure gauge is also provided with a protective sleeve for protecting.
The operation of the pressure balancing device of the logging tool according to the present invention will be described with reference to fig. 1. In the process of descending the well, the sliding cylinder and the sealing ring cover a prefabricated pressure relief hole on the main body structure of the hole opener, and the pressure of an oil pipe and the pressure of a sleeve are mutually isolated; then, the pressure in the shaft is artificially controlled, so that the pressure in the shaft is smaller than the pressure of the bottom layer, and a negative pressure effect is formed. When the hole is to be opened, firstly, a pressure hole opening mode is taken as an example for introduction, and pressure is applied from a wellhead, so that liquid in an oil pipe enters an annular pressurizing cavity through a sliding cylinder (or a pore formed in the sliding cylinder); the pressure generated in the annular pressurizing cavity acts on the sliding cylinder, so that the sliding cylinder moves towards the upper joint; then when pressure reaches or surpasss the shearing force of the cutting pin of installation in the locating ring, cut off the pin and be cut off, the slip cylinder continues upwards to expose prefabricated pressure release hole, realizes oil pipe and annular space intercommunication. And the impingement openings can be described as: the liquid in the annular space flows into the sliding cylinder (or a pore formed on the sliding cylinder) through the positioning ring and then enters the annular pressurizing cavity by using a collision rod thrown from a wellhead to break the cutting pin; and then the pressure generated in the annular pressurizing cavity acts on the sliding cylinder, so that the sliding cylinder moves towards the upper joint, the prefabricated pressure relief hole is exposed, and the communication between the oil pipe and the annulus is realized.
The invention provides a multifunctional combined hole digger which is provided with a hole digger main body structure formed by fixedly connecting an upper joint and a lower joint in series, a sliding cylinder, an annular pressurizing cavity, a prefabricated pressure relief hole, a positioning ring, a cutting pin, a pressure measuring joint, a protective cylinder, a pressure gauge and other structural units. The multifunctional combined hole digger with the structural characteristics has two hole forming modes of impact hole forming and pressurization hole forming, is high in hole forming efficiency and strong in reliability, can complete online pressure measuring operation, and is simple to use and convenient to connect in series.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. Multi-functional combination formula hole digger, its characterized in that includes:
the tapper main body structure is formed by fixedly connecting an upper joint and a lower joint in series;
the sliding cylinder is arranged in a cavity inside the main body structure of the hole digger in a sliding mode, and an annular pressurizing cavity is arranged between the sliding cylinder and the lower connector;
the hole digger main body structure is also provided with a prefabricated pressure relief hole and a positioning ring, and a cutting pin is arranged in the positioning ring;
and a pressure measuring joint which is fixedly arranged on the periphery of the lower joint in a threaded manner, wherein a pressure gauge is arranged on the pressure measuring joint.
2. The multifunctional combined hole cutter as claimed in claim 1, wherein a protective sleeve for protection is further provided around the pressure gauge.
3. The multi-functional combination hole cutter of claim 1, wherein the upper and lower connectors are fixedly connected in series by a set screw.
4. The multi-functional combination hole cutter of claim 1, wherein a sealing ring is further disposed between the sliding cylinder and the interior chamber of the body structure of the hole cutter.
5. The multi-function combination hole cutter of claim 1, wherein the number of cutting pins installed in the retainer ring is not less than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757991.6A CN110778293A (en) | 2018-07-11 | 2018-07-11 | Multifunctional combined hole digger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757991.6A CN110778293A (en) | 2018-07-11 | 2018-07-11 | Multifunctional combined hole digger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110778293A true CN110778293A (en) | 2020-02-11 |
Family
ID=69377067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810757991.6A Pending CN110778293A (en) | 2018-07-11 | 2018-07-11 | Multifunctional combined hole digger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110778293A (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4434854A (en) * | 1980-07-07 | 1984-03-06 | Geo Vann, Inc. | Pressure actuated vent assembly for slanted wellbores |
| US4544034A (en) * | 1983-03-31 | 1985-10-01 | Geo Vann, Inc. | Actuation of a gun firing head |
| US4917187A (en) * | 1989-01-23 | 1990-04-17 | Baker Hughes Incorporated | Method and apparatus for hydraulically firing a perforating gun below a set packer |
| CN201212376Y (en) * | 2008-07-15 | 2009-03-25 | 于成龙 | Injection well pipe column pressure release valve |
| CN202108470U (en) * | 2011-05-30 | 2012-01-11 | 中国石油天然气股份有限公司 | Constant-pressure circulating valve |
| CN102635352A (en) * | 2012-04-18 | 2012-08-15 | 西安思坦仪器股份有限公司 | Perforation pressure meter as well as dispenser and fisher thereof |
| US20120305265A1 (en) * | 2009-11-06 | 2012-12-06 | Weatherford/Lamb, Inc. | Cluster Opening Sleeves for Wellbore |
| CA2755607A1 (en) * | 2011-10-15 | 2013-04-15 | Grant George | Sleeve valve |
| CN203114269U (en) * | 2013-03-17 | 2013-08-07 | 中国石油集团渤海钻探工程有限公司 | Sliding sleeve type negative pressure testing device |
| RU2531149C1 (en) * | 2013-07-16 | 2014-10-20 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Well preoperational clean-up device |
| CN204609850U (en) * | 2015-03-24 | 2015-09-02 | 代平 | One can repeat pressure drilling controller |
| CN204703870U (en) * | 2015-05-11 | 2015-10-14 | 中国石油天然气股份有限公司 | Perforation tubular column |
| CN205063917U (en) * | 2015-09-06 | 2016-03-02 | 中国石油化工股份有限公司 | Perforation completion pipe string secondary pressure release circulating device |
| CN205078234U (en) * | 2015-11-03 | 2016-03-09 | 中国石油天然气股份有限公司 | Pressure release relief valve of equilibrium oil cover pressure |
| CN106285575A (en) * | 2015-05-11 | 2017-01-04 | 中国石油天然气股份有限公司 | Perforation tubular column |
| CN206681707U (en) * | 2017-04-21 | 2017-11-28 | 中国石油化工股份有限公司 | Hammering oil discharger |
| CN207598230U (en) * | 2017-11-10 | 2018-07-10 | 中国石油化工股份有限公司 | A kind of shaft bottom negative pressure monitoring device |
| CN208594911U (en) * | 2018-07-11 | 2019-03-12 | 中石化石油工程技术服务有限公司 | Multifunction combined hole making drill |
-
2018
- 2018-07-11 CN CN201810757991.6A patent/CN110778293A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4434854A (en) * | 1980-07-07 | 1984-03-06 | Geo Vann, Inc. | Pressure actuated vent assembly for slanted wellbores |
| US4544034A (en) * | 1983-03-31 | 1985-10-01 | Geo Vann, Inc. | Actuation of a gun firing head |
| US4917187A (en) * | 1989-01-23 | 1990-04-17 | Baker Hughes Incorporated | Method and apparatus for hydraulically firing a perforating gun below a set packer |
| CN201212376Y (en) * | 2008-07-15 | 2009-03-25 | 于成龙 | Injection well pipe column pressure release valve |
| US20120305265A1 (en) * | 2009-11-06 | 2012-12-06 | Weatherford/Lamb, Inc. | Cluster Opening Sleeves for Wellbore |
| CN202108470U (en) * | 2011-05-30 | 2012-01-11 | 中国石油天然气股份有限公司 | Constant-pressure circulating valve |
| CA2755607A1 (en) * | 2011-10-15 | 2013-04-15 | Grant George | Sleeve valve |
| CN102635352A (en) * | 2012-04-18 | 2012-08-15 | 西安思坦仪器股份有限公司 | Perforation pressure meter as well as dispenser and fisher thereof |
| CN203114269U (en) * | 2013-03-17 | 2013-08-07 | 中国石油集团渤海钻探工程有限公司 | Sliding sleeve type negative pressure testing device |
| RU2531149C1 (en) * | 2013-07-16 | 2014-10-20 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Well preoperational clean-up device |
| CN204609850U (en) * | 2015-03-24 | 2015-09-02 | 代平 | One can repeat pressure drilling controller |
| CN204703870U (en) * | 2015-05-11 | 2015-10-14 | 中国石油天然气股份有限公司 | Perforation tubular column |
| CN106285575A (en) * | 2015-05-11 | 2017-01-04 | 中国石油天然气股份有限公司 | Perforation tubular column |
| CN205063917U (en) * | 2015-09-06 | 2016-03-02 | 中国石油化工股份有限公司 | Perforation completion pipe string secondary pressure release circulating device |
| CN205078234U (en) * | 2015-11-03 | 2016-03-09 | 中国石油天然气股份有限公司 | Pressure release relief valve of equilibrium oil cover pressure |
| CN206681707U (en) * | 2017-04-21 | 2017-11-28 | 中国石油化工股份有限公司 | Hammering oil discharger |
| CN207598230U (en) * | 2017-11-10 | 2018-07-10 | 中国石油化工股份有限公司 | A kind of shaft bottom negative pressure monitoring device |
| CN208594911U (en) * | 2018-07-11 | 2019-03-12 | 中石化石油工程技术服务有限公司 | Multifunction combined hole making drill |
Non-Patent Citations (1)
| Title |
|---|
| 赵宾: "开发井负压射孔与测试一体化技术研究及应用", 《中国优秀硕士论文全文数据库工程科技Ⅰ辑》, pages 6 - 24 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220208 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant before: WELL LOGGING COMPANY, SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221123 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant after: SINOPEC Group Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant before: Sinopec Jingwei Co.,Ltd. Applicant before: Shengli logging company of Sinopec Jingwei Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200211 |