CN102023123B - Mud densimeter and fluid filling method for mud test - Google Patents
Mud densimeter and fluid filling method for mud test Download PDFInfo
- Publication number
- CN102023123B CN102023123B CN2010105593984A CN201010559398A CN102023123B CN 102023123 B CN102023123 B CN 102023123B CN 2010105593984 A CN2010105593984 A CN 2010105593984A CN 201010559398 A CN201010559398 A CN 201010559398A CN 102023123 B CN102023123 B CN 102023123B
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- connection block
- holder assembly
- fluid
- film holder
- mud
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Abstract
The invention relates to a mud densimeter and a fluid filling method for a mud test. A positive connecting base and a negative connecting base of the densimeter are respectively welded to a positive direction and a negative direction of a differential pressure transducer, a pipe is respectively welded to a plate, two straight barrels and a disc, two membrane base assemblies are respectively welded on two straight barrels, one ends of two capillaries respectively pass through the plate and two holes on the inner wall of the plate to be welded to a fluid pipe I and a fluid pipe II, the other end of the capillary I is welded and fixed on the negative connecting base and communicated with a filling hole I, the other end of the capillary II is welded and fixed with the positive connecting base and communicated with a filling hole II, the differential pressure transducer is arranged in an accommodating chamber and fixed to the accommodating chamber with screws, the accommodating chamber and the plate are fixed together with screws, and a shell assembly and the differential pressure transducer are fixed together. The mud densimeter is of a full welded structure, has good sealing performance, long service life and high reliability, is reliable to transport and convenient to move and remount, and satisfies the requirement for current market on a high-accuracy intelligent mud densimeter.
Description
Technical field
The present invention relates to a kind of densitometer; Be particularly related to a kind of mud density that is used for the mud test and take into account the fluid filling method; Be applicable in petroleum prospecting and the well logging and forecast leakage, blowout, judge down-hole slurry density abnormal occurrence and other high temperature, hygienic requirements is arranged or gather easily and the most dangerous industrial site pipelines of process fluid that condense and pipe in the density measure of working fluid and static liquid.
Background technology
Mud is the fluid that is used for drilling well, and mud scale commonly used is measured.Come equilibrium strata pressure through regulating mud density during drilling well, to prevent and to handle accidents such as blowout (gushing), leakage and well slough.Existing mud scale adopts stop valve, sampling bucket and sampling valve unitized construction, and simple in structure, accuracy of measurement is poor; Adopt the syndeton as sensor and measuring tube such as flange, disc valve, bulky, structure is heavy, and not meeting needs demand small and exquisite, light mud scale on the current market; Mud scale does not have the indication gauge outfit, makes the scene can't observe testing result.
Summary of the invention
In view of the problem that prior art exists, the objective of the invention is through a kind of novel, all-welded mud scale structure that is used for the mud test is provided, it is simple in structure to solve existing mud scale; Accuracy of measurement is poor, and is bulky, the deficiency that structure is heavy; And in mud scale, the Applied Digital circuit engineering is through amplifying circuit, microprocessor; Import button and HART manual operator, realize parameter measurement for three on the housing unit mud density; Through the digital wash head of design, reach convenient, the observation timely of on-the-spot testing result; All-welded structure; Make good airproof performance; Reliability is high; Guaranteeing under very wide operating temperature and most dangerous industrial site condition, reliably to use, is that a kind of design is tending towards rationalizing, hommization, can realize that the mud density that is used for the mud test of remote monitoring and maintenance is taken into account the fluid filling method.
The present invention is for realizing above-mentioned purpose; The technical scheme of being taked is: a kind of mud scale that is used for the mud test; Comprise housing unit, differential pressure pick-up, forward Connection Block, negative sense Connection Block, kapillary I, kapillary II, film holder assembly I, film holder assembly II; It is characterized in that: also comprise room, plate, pipe, dish, straight tube I, straight tube II; Said forward Connection Block and negative sense Connection Block weld together with the forward and the negative sense of differential pressure pick-up respectively; Said pipe welds together with plate, straight tube I, straight tube II and dish respectively; Said film holder assembly I, film holder assembly II are welded on respectively on straight tube I, the straight tube II, and an end of said kapillary I, kapillary II passes hole I, hole II and the film holder assembly I on plate and the inside pipe wall respectively, fluid hose I, the fluid hose II on the film holder assembly II welds together, and the other end of kapillary I is fixed with the welding of negative sense Connection Block and communicated with filling hole I; The other end of kapillary II is fixed with the welding of forward Connection Block and is communicated with filling hole II; Differential pressure pick-up places room to be fixed together through screw and room, and room and plate pass through screw retention together, and housing unit and differential pressure pick-up are fixed together.
A kind of mud scale fluid filling method that is used for the mud test, it is characterized in that: the fluid filling step is following:
(1), the filling joint is screwed in respectively on the fluid hose I of fluid hose II, film holder assembly I of filling hole I and film holder assembly II of filling hole II, negative sense Connection Block of forward Connection Block;
(2), the flexible pipe on the filling equipment is connected with the filling joint through threeway;
(3), energized, start vacuum pump, observe vacuum pump and make vacuum tightness reach 10
-2Pa;
(4), open storage tank; Silicone oil gets into from the filling hole II of forward Connection Block, and the fluid hose II through film holder assembly II flows out from the fluid bore II, and silicone oil gets into from the filling hole I of negative sense Connection Block; Fluid hose I through film holder assembly I flows out from the fluid bore I, and filling silicone oil is accomplished;
(5), remove flexible pipe and joint on the fluid hose II with the forward Connection Block, seal the fluid hose II with pin, remove flexible pipe and joint on the fluid hose I with the negative sense Connection Block, seal the fluid hose I with pinning;
(6), remove the flexible pipe and the joint of the fluid bore II of film holder assembly II, seal the fluid bore II with pin, remove the flexible pipe and the joint of the fluid bore I of film holder assembly I, seal the fluid bore I with pinning;
Above operation is accomplished the silicone oil filling of mud scale.
The invention has the beneficial effects as follows: the differential pressure pick-up of mud scale adopts external advanced diffuse si differential pressure pick-up; When receiving excessive unidirectional loads, differential pressure pick-up does the time spent; Isolation diaphragm and transmitter body are adjacent to; Make excessive uniaxial pressure can not act on the survey sensor assembly, thereby protected sensor, make transmitter have fabulous single-track overload characteristic.This structure overcome capacitance transducer center diaphragm be measuring diaphragm be again that the diaphragm that brings of the isolation diaphragm between the height pressure chamber is yielding, and the transmitter that causes is prone to shortcomings such as drift and long-time stability difference zero point; All-welded structure does not have the connection of screw thread or rubber sealing, good airproof performance, and transportation is reliable, and be convenient to the user and move and reinstall, long service life, reliability is high; Differential pressure pick-up and Connection Block welded structure reduce joint gap, have improved the stability of transmitter; On-line measurement continuously, no process is interrupted, and can directly be used for the control of production run; Easy to install, can on the LED digital watch, show measurement result (pressure, density etc.) in the insertion liquid.In a word, current market demand pin-point accuracy, intelligent mud scale demand have been satisfied.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a upward view of the present invention.
Embodiment
Like Fig. 1, shown in 2; The mud scale that is used for the mud test; Comprise housing unit 1, differential pressure pick-up 2, forward Connection Block 3, negative sense Connection Block 4, kapillary I 10, kapillary II 11, film holder assembly I 12, film holder assembly II 13; It is characterized in that: also comprise room 5, plate 7, pipe 9, dish 14, straight tube I 15, straight tube II 16; Said forward Connection Block 3 and negative sense Connection Block 4 weld together with the forward and the negative sense of differential pressure pick-up 2 respectively; Said pipe 9 is respectively with plate 7, straight tube I 15, straight tube II 16 and coil 14 and weld together; Said film holder assembly I 12, film holder assembly II 13 are welded on respectively on straight tube I 15, the straight tube II 16, an end of said kapillary I 10, kapillary II 11 pass plate 7 respectively and manage hole I 9-1, hole II 9-2 and the film holder assembly I 12 on 9 inwalls, fluid hose I 12-1, the fluid hose II 13-1 on the film holder assembly II 13 welds together, the other end of kapillary I 10 and negative sense Connection Block 4 weld to be fixed and communicates with filling hole I 4-1; The other end of kapillary II 11 is fixed with 3 welding of forward Connection Block and is communicated with filling hole II 3-1; Differential pressure pick-up 2 places room 5 to be fixed together through screw 6 and room 5, and room 5 is fixed together through screw 8 with plate 7, and housing unit 1 is fixed together with differential pressure pick-up 2.After differential pressure pick-up 2 forwards and 3 welding of forward Connection Block; Measure path through kapillary II 11 and the forward that film holder assembly 13 welding backs form a sealing; After differential pressure pick-up 2 negative senses and 4 welding of negative sense Connection Block, measure path through kapillary I 10 and the negative sense that film holder assembly 12 welding backs form a sealing.
A kind of mud scale fluid filling method that is used for the mud test, the fluid filling step is following:
(1), the filling joint is screwed in respectively on the fluid hose I 12-2 of fluid hose II 13-2, film holder assembly I 12 of filling hole I 4-1 and film holder assembly II 13 of filling hole II 3-1, negative sense Connection Block 4 of forward Connection Block 3;
(2), the flexible pipe on the filling equipment is connected with the filling joint through threeway;
(3), energized, start vacuum pump, observe vacuum pump and make vacuum tightness reach 10
-2Pa;
(4), open storage tank; Silicone oil gets into from the filling hole II 3-1 of forward Connection Block 3; Fluid hose II 13-1 through film holder assembly II 13 flows out from fluid bore II 13-2; Silicone oil gets into from the filling hole I 4-1 of negative sense Connection Block 4, and the fluid hose I 12-1 through film holder assembly I 12 flows out from fluid bore I 12-2, and filling silicone oil is accomplished;
(5), remove flexible pipe and joint on the fluid hose II 3-1 with forward Connection Block 3, seal fluid hose II 3-1 with pin,
Remove flexible pipe and joint on the fluid hose I 4-1 with negative sense Connection Block 4, seal fluid hose I 4-1 with pin;
(6), remove flexible pipe and the joint of the fluid bore II 13-2 of film holder assembly II 13, seal fluid bore II 13-2 with pin,
Remove flexible pipe and the joint of the fluid bore I 12-2 of film holder assembly I 12, seal fluid bore I 12-2 with pin; Above operation is accomplished the silicone oil filling of mud scale.
Based on the proportional principle of the height of survey liquid differential pressure and this liquid; Adopt external advanced diffuse si differential pressure pick-up; Utilize fluid to be measured density, acceleration of gravity, liquid depth three's multiplication relationship; Height through 13 of known differential pressure pick-up force value (mud scale range) and film holder assembly 12, film holder assemblies just can obtain the density of fluid to be measured, thereby reach the measurement of mud density.When mud scale is put in the fluid to be measured a certain degree of depth; The malleation chamber side form holder assembly 13 of differential pressure pick-up, negative pressure cavity side form holder assembly 12 are met the pressure that liquid level receives and are acted on the silicon differential pressure pick-up 2 through isolation diaphragm and filling liquid; The differential pressure that measuring diaphragm applies owing to receiving is out of shape, and 4 piezoelectricity arm resistance resistances on the measuring diaphragm change thereupon, and make the output voltage of resistance bridge and differential pressure change pro rata; Electric signal amplifies through instrument amplifier again; And digitizing in an A/D converter, digital signal is calculated in a microprocessor, proofreaies and correct its linearity and temperature-responsive; In D-A converter, change into standard electric signal (4mA～20mA) then; Measuring sensor exclusive data, electronic unit data and supplemental characteristic all are stored in two eeprom memories, can be through three on housing unit input buttons and HART communication, and PROFIBUS-PA or FF fund field-bus interface carry out parameter setting; Realize the measurement of mud density, also show measurement result, error message and method of operating etc. on the may command digital watch.
Claims (2)
1. one kind is used for the mud scale that mud is tested; Comprise housing unit (1), differential pressure pick-up (2), forward Connection Block (3), negative sense Connection Block (4), kapillary I (10), kapillary II (11), film holder assembly I (12), film holder assembly II (13); It is characterized in that: also comprise room (5), plate (7), pipe (9), dish (14), straight tube I (15), straight tube II (16); Said forward Connection Block (3) and negative sense Connection Block (4) weld together with the forward and the negative sense of differential pressure pick-up (2) respectively; Said pipe (9) welds together with plate (7), straight tube I (15), straight tube II (16) and dish (14) respectively; Said film holder assembly I (12), film holder assembly II (13) are welded on respectively on straight tube I (15), the straight tube II (16); One end of said kapillary I (10), kapillary II (11) passes hole I (9-1), hole II (9-2) and the film holder assembly I (12) on plate (7) and pipe (9) inwall respectively, fluid hose I (12-1), the fluid hose II (13-1) on the film holder assembly II (13) welds together; The other end of kapillary I (10) is fixed with negative sense Connection Block (4) welding and is communicated with filling hole I (4-1); The other end of kapillary II (11) is fixed with forward Connection Block (3) welding and is communicated with filling hole II (3-1); Differential pressure pick-up (2) places room (5) to be fixed together through screw (6) and room (5); Room (5) is fixed together through screw (8) with plate (7), and housing unit (1) is fixed together with differential pressure pick-up (2).
2. one kind is used the mud scale of claim 1 to carry out the mud scale fluid filling mode that mud is tested, and it is characterized in that: the fluid filling step is following:
(1), the filling joint is screwed in respectively on the fluid hose I (12-2) of fluid hose II (13-2), film holder assembly I (12) of filling hole I (4-1) and film holder assembly II (13) of filling hole II (3-1), negative sense Connection Block (4) of forward Connection Block (3);
(2), the flexible pipe on the filling equipment is connected with the filling joint through threeway;
(3), energized, start vacuum pump, observe vacuum pump and make vacuum tightness reach 10
-2Pa;
(4), open storage tank; Silicone oil gets into from the filling hole II (3-1) of forward Connection Block (3); Fluid hose II (13-1) through film holder assembly II (13) flows out from fluid bore II (13-2); Silicone oil gets into from the filling hole I (4-1) of negative sense Connection Block (4), and the fluid hose I (12-1) through film holder assembly I (12) flows out from fluid bore I (12-2), and filling silicone oil is accomplished;
(5), remove flexible pipe and joint on the fluid hose II (3-1) with forward Connection Block (3); Seal fluid hose II (3-1) with pin; Remove flexible pipe and joint on the fluid hose I (4-1) with negative sense Connection Block (4), seal fluid hose I (4-1) with pin;
(6), remove the flexible pipe and the joint of the fluid bore II (13-2) of film holder assembly II (13); Seal fluid bore II (13-2) with pin; Remove the flexible pipe and the joint of the fluid bore I (12-2) of film holder assembly I (12), seal fluid bore I (12-2) with pin; Above operation is accomplished the silicone oil filling of mud scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105593984A CN102023123B (en) | 2010-11-26 | 2010-11-26 | Mud densimeter and fluid filling method for mud test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105593984A CN102023123B (en) | 2010-11-26 | 2010-11-26 | Mud densimeter and fluid filling method for mud test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102023123A CN102023123A (en) | 2011-04-20 |
| CN102023123B true CN102023123B (en) | 2012-05-23 |
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ID=43864685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105593984A Expired - Fee Related CN102023123B (en) | 2010-11-26 | 2010-11-26 | Mud densimeter and fluid filling method for mud test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102023123B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802345A (en) * | 2017-04-27 | 2018-11-13 | 北京世通科创技术有限公司 | Integral type mud measures meter specially |
| CN113640176B (en) * | 2021-07-30 | 2024-02-20 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Lime milk specific gravity measuring method, device, system and computer readable storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851216B2 (en) * | 1976-03-19 | 1983-11-15 | 太平洋セメント株式会社 | Slurry concentration meter |
| CN2438115Y (en) * | 2000-06-15 | 2001-07-04 | 华北石油管理局录井处 | Logging mud density sensor |
| CN201867352U (en) * | 2010-11-26 | 2011-06-15 | 天津肯泰仪表有限公司 | Slurry densimeter for slurry test |
-
2010
- 2010-11-26 CN CN2010105593984A patent/CN102023123B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102023123A (en) | 2011-04-20 |
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Granted publication date: 20120523 Termination date: 20141126 |
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| EXPY | Termination of patent right or utility model |