RockySea Petro 3NB Series Mud PumpData sheetFunction1. Remove rock debris from the bottom of the well and send it back to the surface;2. Handle complex underground situations. When encountering fractured formations, pump in plugging materials, and when encountering stuck drilling, pump in crude oil and diesel to release the stuck.3. Make mud cakes on the wellbore to prevent collapse;4. Balance or control the pressure of oil, gas, and water layers in the drilled well section to prevent blowout;5
VIEW DETAILSRockySea Petro Float Collar and FloatData sheetAdvantageSunrise has extensive experience in manufacturing float hoops and shoes, and its products have the following advantages.1) The reliable valve body structure reduces the resistance of cement slurry flow.2) All internal accessories are drillable and have the same diameter as the casing.3) The special structural design effectively prevents the backflow of cement slurry.4) The buckle can be processed into BTC/LTC/STC/VAM/FOX/TP-CQ/OTTM accordi
VIEW DETAILSRockySea Petro Water Injection Wellhead And Christmas TreeAccording to casing and well condition, Water Injection Wells can be divided into large casing well, normal well and small diameter well.According to the pipe string structure Water Injection Wells can be divided into support type and suspension type.According to their functions, water Injection wells are divided into stratified injection Wells and general injection wells.In the process of oilfield development, special water injection Wells a
VIEW DETAILSRockySea Petro Flush by UnitData sheetApplicationsRSR of Sunrise can efficiently and quickly complete various oilfield workover operations as the following: 1).Heavy duty workover serviceDrilling serviceDownhole stuck freeing serviceSealing and channeling serviceCasing shaping serviceCasing repair service2).Shallow- to high-depth well interventions, including:Killing wellsFlushing productions wellsChanging wellhead valvesPressure-testing wells.Changing polished rods Spacing and respac
VIEW DETAILSRockySea Petro Anti-Corrosion Downhole PumpRockySea Petro is the best Special Pump Manufacturers for Anti-corrosion Downhole Pump.RockySea Petro has developed the downhole pumps with various processes of boronizing, nitriding, chrome plating, tungsten plating for corrosive oil wells.RockySea Petro has successfully developed brass and stainless steel sucker rod pumps using precision rolling process.It is one of the most professional Anti-corrosion Downhole Pump Manufacturers and SuppliersSanjcak has 40 years’ experienc
VIEW DETAILSRockySea Petro Drilling Jar
Application
RockySea Petro can provide three main types drilling jar: mechanical, hydraulic, and hydraulic.
1. The combination of mechanical and hydraulic drilling jar absorbers combines the advantages of the above two shock absorber principles. Even if the hydraulic delayed shock absorber fails, the mechanical shock absorber can still be used, and the technical performance has been greatly improved, which is in line with the future development direction of shock absorber products
2. Hydraulic drilling jar uses the damping effect of hydraulic oil flowing in a small channel as a locking mechanism, and utilizes the release caused by sudden changes in the channel to generate impact inside the shaker, thereby forming vibration inside the drill string. Due to the limitations of its locking mechanism, hydraulic shock absorbers can only produce shock in a single direction, generally upward shock. Due to its superior long delay function compared to mechanical jars, its impact force can be adjusted arbitrarily by the operation of the driller. However, hydraulic media, sealing materials, and sealing structures are easily affected by factors such as wear and well temperature, resulting in unstable product life, adaptability, and reliability. Obviously, this type of shock absorber has very strict requirements for the design of sealing structures, the selection of sealing materials, and the machining accuracy of parts.
3. Mechanical drilling jar absorber utilizes the principle of mechanical friction, and the locking mechanism adopts a set of ribbed slips. The release elastic sleeve of the slip pair is controlled by the deformation under pressure, and the shock force is not affected by the temperature inside the well. Mechanical shock absorbers can be designed with adjustable or non adjustable shock forces. The shock force of adjustable shock absorbers is adjusted at the wellhead, while that of non adjustable shock absorbers is set during product assembly and cannot be adjusted on site. However, the overall length of the machine is short, ensuring safe and reliable operation. Mechanical shock absorbers require high precision in metal materials, heat treatment, and machining.
Principle
When it is necessary to perform an upward jarring operation with a vibrator, sufficient pre tension is applied to the ground, the locking mechanism inside the tool is unlocked, and the stored energy in the drill string is released. The hammer of the vibrator impacts the anvil, and the stored tensile strain energy in the drill string is quickly converted into kinetic energy, which is transmitted to the clamping point in the form of stress waves, causing a tension far exceeding the pre tension at the clamping point, causing the stuck drill string to slide upwards. After multiple shocks, the stuck drill string detached from the stuck area.
The principle of down jarring is similar also.
Description
The main types of jars used include drilling jars, salvage jars, and ground jars. If encountering jamming during drilling or tripping, it is possible to shake and release the jamming at any time. Salvage jars are only used for drilling operations when they need to be released, and cannot be operated while drilling for extended periods of time. Ground shock absorbers are only used at the wellhead, and their vibration effect on the stuck point is downward shock, making on-site use more convenient.
RockySea Petro: A Pioneer in Drilling Jar Manufacturing in China
In drilling operations, due to complex geological structures (such as wellbore collapse, plastic flow and compression of the formation in the open hole), improper technical measures (such as long pump shutdown time, drill bit mud pockets, etc.), drilling tools often encounter obstacles and get stuck. The vibrator is one of the effective tools to relieve stuck accidents.
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