A mud gas separator, also known as a poorboy degasser or oilfield gas buster, is a critical component of drilling operations in the oil and gas industry. Its location is downstream of the choke manifold. This will make it able to separate gas from the drilling fluid. In addition, its design will assist preventing the …
Solids control is a constant problem, every day on every well. Generally, we can define solids control as controlling the quantity and quality of undesired cuttings in the drilling mud types since the increasing of these solids can generate negative effects both to the well and drilling. In addition, these solids will increase the total mud …
The importance of solid control equipment is its ability to save costs of dumping drilling fluids due to the existence of unwanted solids inside. As we are drilling the well, the cuttings will appear in the mud, and further treatment is necessary. Shale Shakers The design of shaker screens allows them to remove the particles …
The use of screens (Shaker Screen) to remove drilled solids from mud uses only one characteristic of solids particles -their size. Solids control devices that speed up drilled solids’ settling process by applying centrifugal force take advantage of two factors – particle size and particle density. Hydrocyclones (Desanders & Desilters) and centrifuges in oilfields rely …
The mud cleaner has a battery of 101.6 mm (4″) desilters mounted over a fine screen shaker. The original reason for its introduction was to separate and save barytes in weighted muds. However, they are now used for low solids mud and oil mud. By accelerating mud through a curved vessel, there will be a …
Desanders and desilters (Figure 1) are secondary solids control equipment used in oil and gas drilling rigs (check also: types of drilling rigs) that use hydrocyclones. They operate using the centrifugal force created by injecting fluid tangentially at high speed, these exaggerate the differences in settling speed of different size particles of the same density. …
When the mud is in a static condition, the rheological properties should prevent solids (weighting material and drilled formation solids) from settling. The relevant property in this respect is the mud’s gel strength. The drilling mud gel strength is caused by the interactive forces between colloids (e.g., clay particles), polymer radicals, or emulsion droplets in …
Most formation solids can be removed by mechanical means at the surface as shale shaker screens. Small particles are more difficult to remove and have a greater effect on drilling fluid properties than large particles. The particle size of drilled solids incorporated into drilling fluid can range from 1 to 250 microns (1 micron equals …
The shale shakers are the first mechanical treatment of the returning drilling fluid for solids control. None of the other mechanical devices can cope with solids control without the pre-treatment of the mud in the shale shaker. A shale shaker or vibration screen is a spring-mounted screen. The vibration of the such screen is by …
Shale Shaker performance Design is a function of: The impact of each is discussed in detail in the previous article (please check the link for each article). Guidelines for shaker and screen selection are also provided. Vibration Patterns Design For Shale Shaker Shale shakers are classified in part of the vibration pattern made by the …