CN202810832U - Multilayer static pressure measuring device - Google Patents
Multilayer static pressure measuring device Download PDFInfo
- Publication number
- CN202810832U CN202810832U CN 201220447370 CN201220447370U CN202810832U CN 202810832 U CN202810832 U CN 202810832U CN 201220447370 CN201220447370 CN 201220447370 CN 201220447370 U CN201220447370 U CN 201220447370U CN 202810832 U CN202810832 U CN 202810832U
- Authority
- CN
- China
- Prior art keywords
- joint
- multilayer
- pressure measuring
- packer
- pressure
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a multilayer static pressure measuring device, which consists of a multilayer static pressure measuring pipe string and a pressure measuring tool string, wherein the multilayer static pressure measuring pipe string is not connected with the pressure measuring tool string, the multilayer static pressure measuring pipe string is formed by sequentially connecting a telescopic pipe, a reverse circulating switch, a safety joint, a first hydraulic anchor, a Y341 packer, a first slide sleeve switch, a secondary locating joint, a second hydraulic anchor, a Y241 packer, a second slide sleeve switch, a primary locating joint, a Y521 packer and a ball seat by threads from top to bottom, the pressure measuring tool string is formed by sequentially connecting a steel wire, a weighting rod, a jar, a universal joint, a plugging device and an electronic pressure gage by threads from top to bottom, and one end of the steel wire is provided with a rope cap. During construction, the electronic pressure gage of the pressure measuring tool string is located on the locating joint, a cracking layer is completely packed, then the pressure of the cracking layer is measured, the plugging device and the electronic pressure gage are fished out, and data of the electronic pressure gage is reproduced to read the pressure of the corresponding layer. The multilayer static pressure measuring device has the advantage that the static pressure data of a single-layer stratum can be reliably obtained.
Description
Technical field
The utility model relates to the device that static pressure is surveyed in a kind of gas field, and particularly a kind of multilayer is surveyed static press device.The utility model belongs to natural gas exploration and development gas testing operation field.
Background technology
Most of gas reservoir in long celebrating gas field has many cover aerogenesis series of strata, and each layer will could obtain production capacity through fracturing reform, traditional separate stratum fracfturing mode as: liquid gum plug, retrievable bridge plug or mechanical packer separate stratum fracfturing etc. are played in back-up sand, have long construction period, a shortcoming such as reservoir damage is serious or operating expenses is high.Independent research in 2005 Oil/gas Well fixed tubular column separate stratum fracfturing instrument, realized the continuous dividing potential drop 2-5 layer of fixed tubular column, reached separate zone stimulation, combination producing, raising well yield purpose, effectively reduce reservoir damage and well control risk.But this technique can not be enrolled individual layer static pressure data, has caused very large difficulty for the formulation of producing dynamic prediction, reserves calculating, rational exploitation system in gas field exploration, the development process.
Summary of the invention
Close layer discharge opeing and ask the difficult problem that individual layer static pressure data can't be enrolled in the production. art in order to solve the separate stratum fracfturing of gas well fixed tubular column, the purpose of this utility model provides a kind of multilayer and surveys static press device, and it can obtain individual layer stratum static pressure data reliably.
The technical solution of the utility model is: multilayer is surveyed static press device, it is characterized in that: it is to survey the static pressure tubing string by multilayer, the gaging pressure tool string forms, they do not have annexation each other, described multilayer survey the static pressure tubing string be by telescoping tube, anti-cycling switch, safety joint, first hydraulic anchor, Y341 packer, first sliding sleeve switch, secondary be located joint, second hydraulic anchor, Y241 packer, second sliding sleeve switch, one-level be located joint, Y521 packer, ball seat from top to bottom successively order be threaded and form; Described gaging pressure tool string is sequentially to be threaded from top to bottom and to be formed by steel wire, weighted lever, bumper jar, universal joint, blanking plug, the electronic pressure gauge of an end with rope socket.
Described electron pressure is counted memory electronic pressure gauge, will programme before memory electronic pressure gauge is gone into the well, and step-length is to get 1 point in per 1 minute, and the continuous programming time is more than 20 days.
Described secondary is located joint and one-level and is located joint and is: the MX type is located joint.
The beneficial effects of the utility model are:
1. multilayer separate pressure production time admission individual layer static pressure is for Development Evaluation of Gas Field provides accurately and reliably PRESSURE DATA;
2. in order to obtain individual layer stratum static pressure data, need to carry out individual layer gas testing operation and close the prospect pit that layer row adopts, can directly carry out fixed tubular column separate stratum fracfturing technique or dividing and survey technique, reduced the number of times that makes a trip, reduced labour intensity, have very large Social benefit and economic benefit, popularizing application prospect is wide.
3. use this technology and finish altogether 5 mouthfuls of well static pressure tests, success rate reaches 100%.
4. secondary is located joint and one-level and is located joint and all adopts the MX type to be located joint. can reduce and reduce completion and cost for oil production; Material and the size identical with the oil pipe specification can be born the maximum fluid physical property; Can be used for the standard type oil pipe; Various special button-types can be provided.
5. electronic pressure gauge adopts memory electronic pressure gauge, so that the pressure and temperature range is wide, and compact conformation, stable performance has high accuracy, high-resolution, easy to use, the advantage such as testing cost is low.
Technological principle of the present utility model is:
Setting before the packer pressure break, by oil jacket annular space packing gas-bearing formation, after pressure break finished to close layer discharge opeing, Y521 packer, Y241 packer still were in setting state.
Wellhead shut-in with the full blanking plug of oil pipe under the steel wire, separates gas-bearing formation by oil pipe, at this moment is in respectively between layers in the environment of sealing.The electronic pressure gauge that blanking plug carries is recorded respectively the stressor layer recovery situation.
Pressure at first descends electronic pressure gauge to measure stratum, upper strata static pressure after recovering to stablize.Then successively blanking plug is pulled out from top to bottom with steel wire, the data in the playback electronic pressure gauge read the pressure data of following two layers.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but not as to restriction of the present utility model:
Fig. 1 is the structural representation that the multilayer of the utility model embodiment is surveyed the static pressure tubing string;
Fig. 2 is the structural representation of the gaging pressure tool string of the utility model embodiment;
Fig. 3 is the structural representation that the MX type is located joint.
Among the figure: 1, telescoping tube; 2, anti-cycling switch; 3, safety joint; 4, first hydraulic anchor; 5, Y341 packer; 6, the 3rd fractured layer; 7, first sliding sleeve switch; 8, secondary is located joint; 9, second hydraulic anchor; 10, Y241 packer; 11, the second fractured layer; 12, second sliding sleeve switch; 13, one-level is located joint; 14, Y521 packer; 15, ball seat; 16, the first fractured layer; 17, steel wire; 18, weighted lever; 19, bumper jar; 20, universal joint; 21, blanking plug; 22, electronic pressure gauge.
The specific embodiment
Embodiment 1
Multilayer is surveyed static press device, it is to survey the static pressure tubing string by multilayer, the gaging pressure tool string forms, they do not have annexation each other, as shown in Figure 1, described multilayer survey the static pressure tubing string be by telescoping tube 1, anti-cycling switch 2, safety joint 3, first hydraulic anchor 4, Y341 packer 5, first sliding sleeve switch 7, secondary be located joint 8, second hydraulic anchor 9, Y241 packer 10, second sliding sleeve switch 12, one-level be located joint 13, Y521 packer 14, ball seat 15 from top to bottom successively order be threaded and form; Shown in Figure 2, described gaging pressure tool string is sequentially to be threaded from top to bottom and to be formed by steel wire 17, weighted lever 18, bumper jar 19, universal joint 20, blanking plug 21, the electronic pressure gauge 22 of an end with rope socket.
Embodiment 2
The detection method that multilayer is surveyed static press device comprises the steps:
During step 1. lower leaf fracturing string, connect the corresponding size multilayer according to design attitude and survey static pressure tubing string (see figure 1); That is: telescoping tube 1, anti-cycling switch 2, safety joint 3, first hydraulic anchor 4, Y341 packer 5, first sliding sleeve switch 7, secondary are located joint 8, second hydraulic anchor 9, Y241 packer 10, second sliding sleeve switch 12, one-level be located joint 13, Y521 packer 14, ball seat 15 from top to bottom successively order be threaded and form multilayer and survey the static pressure tubing string.
After step 2. separate stratum fracfturing, close a layer discharge opeing;
Step 4. connects lubricator, opens the proof wellhead oil casing gate valve;
Step 5. steel wire operation
(1) prepares gaging pressure tool string (see figure 2); That is: with an end with the steel wire 17 of rope socket, weighted lever 18, bumper jar 19, universal joint 20, blanking plug 21, electronic pressure gauge 22 from top to bottom order be threaded and form the gaging pressure tool string, wherein an end of weighted lever 18 is threaded with steel wire 17 by rope socket, and rope socket is an end that is fixedly connected on steel wire 17.
(2) the gaging pressure tool string of previous step being prepared is transferred to one-level and is located joint 13 places, the jarring that faces down slip out of the hand, on mention steel wire 17 in the gaging pressure tool string, take out weighted lever 18, bumper jar 19, universal joint 20, blanking plug 21, electronic pressure gauge 22 are stayed put to one-level and be located on the joint 13; Hit under the lower intubate and slip out of the hand, with the 16 complete packings of the first fractured layer;
(3) again prepare the gaging pressure tool string;
(4) the gaging pressure tool string of previous step being prepared is transferred to secondary and is located joint 8 places, the jarring that faces down slip out of the hand, on mention steel wire 17 in the gaging pressure tool string, take out weighted lever 18, bumper jar 19, universal joint 20, blanking plug 21, electronic pressure gauge 22 are stayed put to one-level and be located on the joint 13; Hit under the lower intubate and slip out of the hand, with the 11 complete packings of the second fractured layer;
Step 6. is closed the proof wellhead oil casing gate valve, the lubricator of dismantling.
After step 7. observation proof wellhead oil casing pressure recovers to stablize, connect lubricator, open the proof wellhead oil casing gate valve, lower electronic pressure gauge 22 is measured barometric gradient and the middle part pressure of the 3rd fractured layer 6; Wherein, stable standard is that the proof wellhead oil casing pressure rising is no more than 0.02MPa in 72 hours; Barometric gradient is along fluid flow direction, and the pressure on the unit path length changes.Available delta form △ P/ △ L or differential form dP/dL represent that P is pressure in the formula; L is distance.Here be to count from ground, the increment of pressure during the every increase unit depth of stratum vertical depth.
Intubate and blanking plug fishing tool salvaging secondary is located blanking plug 21 and the electronic pressure gauge 22 on the joint 8 under step 8. steel wire, and the data in the playback electronic pressure gauge 22 read the pressure of the second fractured layer 11;
Intubate and blanking plug fishing tool salvaging one-level is located blanking plug 21 and the electronic pressure gauge 22 on the joint 13 under step 9. steel wire, and the data in the playback electronic pressure gauge 22 read the pressure of the first fractured layer 16.
Described blanking plug 21 is calkers in a kind of oil pipe, and is totally-enclosed to realizing in the following oil pipe in its present position, reaches the purpose of zonal testing;
Described electronic pressure gauge 22 is memory electronic pressure gauge, will programme before memory electronic pressure gauge is gone into the well, and step-length is to get 1 point in per 1 minute, and the continuous programming time is more than 20 days.
As shown in Figure 3, described secondary is located joint 8 and one-level and is located joint 13 and is: the MX type is located joint.
Use this device of the present utility model and finish altogether 5 mouthfuls of well static pressure tests, success rate reaches 100%.
The parts that present embodiment is not described in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not one by one narration.
Claims (3)
1. multilayer is surveyed static press device, it is characterized in that: it is to survey the static pressure tubing string by multilayer, the gaging pressure tool string forms, they do not have annexation each other, and it is by telescoping tube (1) that described multilayer is surveyed the static pressure tubing string, anti-cycling switch (2), safety joint (3), first hydraulic anchor (4), Y341 packer (5), first sliding sleeve switch (7), secondary is located joint (8), second hydraulic anchor (9), Y241 packer (10), second sliding sleeve switch (12), one-level is located joint (13), Y521 packer (14), ball seat (15) sequentially is threaded successively from top to bottom and forms; Described gaging pressure tool string is sequentially to be threaded from top to bottom and to be formed by steel wire (17), weighted lever (18), bumper jar (19), universal joint (20), blanking plug (21), the electronic pressure gauge (22) of an end with rope socket.
2. multilayer according to claim 1 is surveyed static press device, it is characterized in that: described electronic pressure gauge (22) is memory electronic pressure gauge, will programme before memory electronic pressure gauge is gone into the well, step-length is to get 1 point in per 1 minute, and the continuous programming time is more than 20 days.
3. multilayer according to claim 1 is surveyed static press device, it is characterized in that: described secondary is located joint (8) and one-level and is located joint (13) and is: the MX type is located joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447370 CN202810832U (en) | 2012-09-05 | 2012-09-05 | Multilayer static pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447370 CN202810832U (en) | 2012-09-05 | 2012-09-05 | Multilayer static pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810832U true CN202810832U (en) | 2013-03-20 |
Family
ID=47869730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220447370 Expired - Fee Related CN202810832U (en) | 2012-09-05 | 2012-09-05 | Multilayer static pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810832U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787840A (en) * | 2012-09-05 | 2012-11-21 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multilayer static pressure measuring apparatus and measuring method |
| CN103382834A (en) * | 2013-07-25 | 2013-11-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Separated-layer pressure measurement technology by adopting intelligent switches |
| CN106321037A (en) * | 2016-09-12 | 2017-01-11 | 中国海洋石油总公司 | Method for monitoring displacement effect and pollution radius of polymer |
| CN111894474A (en) * | 2020-06-29 | 2020-11-06 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Operation tool string containing snakelike weight bar |
-
2012
- 2012-09-05 CN CN 201220447370 patent/CN202810832U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787840A (en) * | 2012-09-05 | 2012-11-21 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multilayer static pressure measuring apparatus and measuring method |
| CN102787840B (en) * | 2012-09-05 | 2015-04-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Measuring method of multilayer static pressure measuring apparatus |
| CN103382834A (en) * | 2013-07-25 | 2013-11-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Separated-layer pressure measurement technology by adopting intelligent switches |
| CN106321037A (en) * | 2016-09-12 | 2017-01-11 | 中国海洋石油总公司 | Method for monitoring displacement effect and pollution radius of polymer |
| CN106321037B (en) * | 2016-09-12 | 2019-03-08 | 中国海洋石油集团有限公司 | A kind of method of monitoring polymer Flooding Efficiency and pollution radius |
| CN111894474A (en) * | 2020-06-29 | 2020-11-06 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Operation tool string containing snakelike weight bar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105758561B (en) | Based on the uniform water pressure supporing device and method of visualization | |
| CN103257079A (en) | Three-dimensional simulating device of natural gas hydrate mining stratum stability | |
| CN202810832U (en) | Multilayer static pressure measuring device | |
| CN203570308U (en) | Formation testing system | |
| CN106593422A (en) | Storage type test method and pipe column in horizontal well oil pipe | |
| CN202596684U (en) | Testing process pipe column for casing pipe well completion horizontal well multistage subsection production and water detection | |
| CN104100254A (en) | Sectional synchronous flow rate and water content monitoring and water exploration tubular column of multi-section fracturing horizontal well and working method thereof | |
| CN204371316U (en) | A kind of with working rig pumping discharge opeing horizontal well water exploration tubing string | |
| CN105464644A (en) | Wellhead pressure monitoring method and control system | |
| CN202152643U (en) | Layering production pressure measuring tubular column for exploiting oil wells in multilayer mode | |
| CN101050699B (en) | Method for obtaining thick oil layer vertical permeability using same layer vertical interference test well and test tubular pole | |
| CN102787840B (en) | Measuring method of multilayer static pressure measuring apparatus | |
| CN202064936U (en) | Wireless-transmission borehole shutin pressure measuring device | |
| CN106150489A (en) | A kind of Formation bearing pressure dynamic testing method and cementing method | |
| CN205778834U (en) | Dragging water detection taken out by horizontal well twin packer double card list and production profile surveys process pipe string | |
| CN203551430U (en) | Drilling fluid settleability testing device | |
| CN107489394A (en) | A kind of three oval experimental provision of open hole packer | |
| CN203321507U (en) | Sectional flow rate and water content synchronous monitoring and water detection tubular column for multi-stage fractured horizontal well | |
| CN206617162U (en) | A kind of oil pipe of horizontal well memory storage formula test string | |
| CN106896215B (en) | It is a kind of to simulate a variety of cause conditions to the experimental provision of structure with lower amplitude morphology influence | |
| CN104420836B (en) | Horizontal well in segments setting type well head discharge method searching pipe column and its groundwater prospecting method | |
| CN202788638U (en) | Cased hole completion multistage cracking horizontal well multistage segmentation release water exploration pipe column | |
| CN104100234B (en) | Multistage pressure break horizontal well in segments samples searching pipe column and method of work thereof simultaneously | |
| CN103806901A (en) | Oil well downhole rapid test system and test method | |
| CN202645523U (en) | Shallow measuring sectional water-injecting pipe column for horizontal well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20180905 |